 
(* ::Section:: *)
(* NTerms *)
(* ::Text:: *)
(*NTerms[x] is equivalent to Length if x is a sum; otherwise NTerms[x] returns 1, except NTerms[0] -> 0..*)


(* ::Subsection:: *)
(* Examples *)
NTerms[a-b]

NTerms[a b c]

NTerms[9]

NTerms[0]
